Omega Products 16mm Bridgeport End Mill Holder (R8) - G6.3 - 12,000RPM - S/L16 is a precision tool designed to securely grip end mills in Bridgeport milling machines. Built for high-speed machining, it delivers reliable tool retention and consistent performance at up to 12,000 RPM. R8 compatibility for Bridgeport machines: Specifically engineered to fit Bridgeport milling spindles with an R8 taper, ensuring a secure, repeatable seating that minimizes runout and chatter. High-speed capability up to 12,000 RPM: Designed to maintain grip and concentricity at top-end speeds, helping you achieve clean cuts and better surface finish with fewer tool changes. Durable, precision-ground construction: Built from robust materials with tight tolerances to ensure long tool life and consistent clamping across many jobs. This end mill holder simplifies your workflow by delivering dependable retention and repeatable results whenever you swap end mills. Its sturdy design supports faster, more efficient milling while reducing downtime and rework, so you can complete projects with confidence and consistent accuracy.